wannacry | d0b4f1ada402e28d04aec4476143cd7fe6f3032f9d48434a43e8e82d7cb1a033

General

Target

2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Size

3.6MB
MD5

df6b5425e029830afd2decf9bb5668bf
SHA1

dd94cddb9f0e274ae05a12097a06fe744676d2ae
SHA256

d0b4f1ada402e28d04aec4476143cd7fe6f3032f9d48434a43e8e82d7cb1a033
SHA512

06957c7ae80f30164a4d0355400a9772e3f51be389cae970f3f76d7c379fefec39c051cfa4c76c89716f680c872f29dccce88c424a5da598587c97410cc6e8ef
SSDEEP

98304:yDqPoShz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:yDqPZ1Cxcxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3268) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
2872	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-3b-bb-11-98-3e	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FD75FEB-6BA3-4D54-82F0-9E3050919D56}\3a-3b-bb-11-98-3e	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-3b-bb-11-98-3e\WpadDecisionReason = "1"	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-3b-bb-11-98-3e\WpadDecision = "0"	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FD75FEB-6BA3-4D54-82F0-9E3050919D56}\WpadDecisionReason = "1"	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FD75FEB-6BA3-4D54-82F0-9E3050919D56}\WpadDecisionTime = 4074b9e13594da01	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FD75FEB-6BA3-4D54-82F0-9E3050919D56}\WpadNetworkName = "Network 3"	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-3b-bb-11-98-3e\WpadDecisionTime = 4074b9e13594da01	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0077000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FD75FEB-6BA3-4D54-82F0-9E3050919D56}	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5FD75FEB-6BA3-4D54-82F0-9E3050919D56}\WpadDecision = "0"	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2768
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2872

C:\Users\Admin\AppData\Local\Temp\2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-04-21_df6b5425e029830afd2decf9bb5668bf_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
560482703b342e7dc4f2815142a362fd

SHA1
3c72acc3a016bbfeff18f25b2dd0be9e66c4a9ef

SHA256
55e5910f6d7e4326390c5e0293424fe811d87f8db66f397e5b405fac968e5e1a

SHA512
2440b25419811cedbb0e9973842f6eda01794dbb3c17592b7622631d5e5ce119ce71f22cbee242b2e35353d0c5438b989db077b88da6ef67f64c9d538049f2d0

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